حصل خطأ عند معالجة القالب.
The following has evaluated to null or missing:
==> articleService [in template "775047#775088#880163" at line 6, column 19]
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Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
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FTL stack trace ("~" means nesting-related):
- Failed at: ${articleService.getContentByClassPK(... [in template "775047#775088#880163" at line 6, column 17]
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